Fuel for internal-combustion engines.



enrich.

JOSEPH DE COSMO AND HENRI QUINAUX, Oli LIEGE, BELGIUM.

FUEL FOR INTERNAL-COMBUSTION ENGINES.

wearer.

No Drawing.

To aZ Zcviwm 2t 'may/ concern:

Be it known that we, JOSEPH DE CosM0 and HENRI QUINAUX, both subjects of the King of Belgium, and residing at 20 Rue de la Vieille Montague and 37 Rue Dony, in

Liege, Belgium, have invented certain new and useful Improvements in Fuel for Internal-Combustion Engines; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to a new and economical fuel for explosion motors of all descriptions, produced by mixing different substances in suitable proportions.

It is well known that the price of petrol, which is at present generally used for running motors, tends to rise continually and endeavors are being made to find less costly fuels. With that object in view the heavy oils have been tried, but there are various difficulties in using them in the engines of motor cars, such as incomplete combustion,

the necessity of heating the carbureter,

which causes deposits of carbon that" clog up the orifices and the' sparking plugs, and so on. It has also been proposed to utilize crude naphthalene or white naphthalene, but as naphthalene will not liquefy or retain the liquid condition at a lower temperature than about 80 (1, it has been found necessary to use special carbureters.

The essential feature of the present invention is the solution in refined mineral oil of a substantial proportion of naphthalene, which by the aid of suitable additional substances is maintained in solution at ordinary temperatures in a condition in which the mixture is readily vaporized. The addi tional substances by which we effect solution of the naphthalene are nitro-naphthalene, naphthylamin and cresol, in proportions which may vary with the nature of the oil and the amount of naphthalene to be Specification of Letters Patent.

Patented May 30, 1916.

Application filed May 15, 1913. Serial No. 767,878.

dissolved. The following proportions and ntelthod of mixing have been found suita e:

Crude na'phthalene 400 grams. Refined mineral oil 600 Nitro-naphthalene 10 Naphthylalnin 5 Cresol 5 These substances are mixed together preferably as follows: The crude naphthalene 1s first mixed with half the quantity of mineral oil (300 grams), then the nitro-naphthalene and the naphthylamin are added, and the mixture is brought to a temperature of from 23 to 30 cent., according to the quality of the naphthalene used. The mix- ,ture maintains its liquid state at these and even at lower temperatures. Finally, the rest of the mineral oil is added, and the whole strongly agitated by means of a rotatingcentral stirrer or any other convenient contrivance. \Vhen in consequence of the centrifugal action, the liquid has formed a central depression the cresol is poured in, which homogenizes the mixture. The liquid fuel is then decanted, allowed to rest for ten or twelve hours to permit any impurities to settle, and is then filtered off.

The nitronaphthalene and naphthylamin may be used singly, as they have substantially the same effect but usually a mixture would be employed, the relative proportions of which may depend on the cost of each of homogeneous mixture, which is cheap and efiicient, is free from acidity and has much the same viscosity as petrol.

'Having thus described our invention, We

claim 1. A liquid fuel for explosion engines containing a substantial proportion of naphthalene, mineral oil, and naphthylic compound, and cresol.

2. A liquid fuel for explosion engines containing a substantial proportion of naphthalene, mineral oil, naphthylamin, and cresol.

J. on COSMO. H. QUINAUX.

' Witnesses:

' L. R. DELLICOUR,

A. PENDLETON CRUGER. 

